How far back does your knowledge of databases go — late-1980s, mid-1990s, five years ago? If so, you might not recognize some of the old timers in this list. You'll also do a double take if you didn't know many of them have their roots in the mid-to-late 1970s. It would be hard to argue that the database market is not mature.
It's also highly competitive, and enterprise database systems come packed with features from hot backups to high-availability to extensive cloud services. These database systems range in price from free to tens of thousands of dollars.
There's no single correct answer for every data problem. Nor is there a perfect database system; each has its own set of features and shortcomings. Here's a primer of the top enterprise database systems on the market in 2015 to help you determine which solution will likely work best for you.
Tags: MySQL, database, Top 10, Oracle, PostgreSQL, SAP, SQL Server, database management, IBM DB2, Amazon SimpleDB, Microsoft SQL Server